Merge branch '2.8' into 3.0

* 2.8:
  Minor fixes
  [Console] Overcomplete argument exception message tweak.
  fixed bad auto merge
  Console table cleanup
  undefined offset fix (#19406)
  [EventDispatcher] Removed unused variable

Author: fabpot

Tests/Fixtures/ExtensionPresentBundle/Command/BarCommand.php

@@ -3,7 +3,6 @@
 namespace Symfony\Component\HttpKernel\Tests\Fixtures\ExtensionPresentBundle\Command;
 
 use Symfony\Component\Console\Command\Command;
-use Symfony\Component\HttpKernel\Bundle;
 
 /**
  * This command has a required parameter on the constructor and will be ignored by the default Bundle implementation.